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    Carbidopa EP Impurity G

    Carbidopa EP Impurity G

    Synonym

    1-(3,4-dihydroxyphenyl)propan-2-one

    Molecular Formula

    C9H10O3

    Molecular Weight

    166.18

    Catalogue Number

    AR-C01371

    Parent Drug

    DOPA

    CAS Number

    2503-44-8

    Common Package:10,25,50,100 mg

    Collections: DOPA

    Category: 2503-44-8 AR-C01371 C9H10O3 DOPA

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    Rel-(2S,3S)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Synonym

    Rel-(2S,3S)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Molecular Formula

    C9H11NO5

    Molecular Weight

    213.19

    Catalogue Number

    AR-D02269

    Parent Drug

    DOPA
    DL-threo-Droxidopa

    Synonym

    Rel-(2S,3R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Molecular Formula

    C9H11NO5

    Molecular Weight

    213.19

    Catalogue Number

    AR-D02268

    Parent Drug

    DOPA

    CAS Number

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    erythro-Ī²,3-Dihydroxy-L-tyrosine

    Synonym

    (2S,3S)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Molecular Formula

    C9H11NO5

    Molecular Weight

    213.19

    Catalogue Number

    AR-D02267

    Parent Drug

    DOPA

    CAS Number

    34047-62-6
    Methyldopa EP Impurity C HCl H2O

    Synonym

    (S)-2-amino-3-(3,4-dimethoxyphenyl)-2-methylpropanoic acid hydrochloride hydrate

    Molecular Formula

    C12H17NO4. HCl. H2O

    Molecular Weight

    239.27 36.46 18.05

    Catalogue Number

    AR-D02266

    Parent Drug

    DOPA
    Droxidopa Impurity 7-13C-d3 HCl

    Molecular Formula

    13C C9H10NO5D3. HCl

    Molecular Weight

    231.23 36.46

    Catalogue Number

    AR-D02265

    Parent Drug

    DOPA

    CAS Number

    39846-91-8 (non-labelled, free base)
    (R)-3-Methoxytyrosine

    Synonym

    (R)-2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

    Molecular Formula

    C10H13NO4

    Molecular Weight

    211.22

    Catalogue Number

    AR-D02264

    Parent Drug

    DOPA

    CAS Number

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    (S)-2-acetamido-3-(3,4-dimethoxyphenyl)propanoic acid

    Synonym

    (S)-2-acetamido-3-(3,4-dimethoxyphenyl)propanoic acid

    Molecular Formula

    C13H17NO5

    Molecular Weight

    267.28

    Catalogue Number

    AR-D02263

    Parent Drug

    DOPA

    CAS Number

    27313-65-1
    2-amino-3-(3,4-dimethoxyphenyl)propanoic acid

    Synonym

    2-amino-3-(3,4-dimethoxyphenyl)propanoic acid

    Molecular Formula

    C11H15NO4

    Molecular Weight

    225.24

    Catalogue Number

    AR-D02262

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    DOPA

    CAS Number

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    Droxidopa Impurity 8-13C2-15N

    Molecular Formula

    13C2 15N C8H13O5

    Molecular Weight

    230.19

    Catalogue Number

    AR-D02261

    Parent Drug

    DOPA

    CAS Number

    29025-01-2 (non-labelled)
    Droxidopa Impurity 7-13C2-15N

    Molecular Formula

    13C2 15N C8H13O5

    Molecular Weight

    230.19

    Catalogue Number

    AR-D02260

    Parent Drug

    DOPA
    (2S,3R)-2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

    Synonym

    (2S,3R)-2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

    Molecular Formula

    C10H13NO5

    Molecular Weight

    227.22

    Catalogue Number

    AR-D02259

    Parent Drug

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    CAS Number

    29025-01-2
    2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

    Synonym

    2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

    Molecular Formula

    C10H13NO5

    Molecular Weight

    227.22

    Catalogue Number

    AR-D02258

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    DL-dopaquinone

    Synonym

    2-amino-3-(3,4-dioxocyclohexa-1,5-dien-1-yl)propanoic acid

    Molecular Formula

    C9H9NO4

    Molecular Weight

    195.17

    Catalogue Number

    AR-D02257

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    DOPA

    CAS Number

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    Dibenzylamine

    Synonym

    dibenzylamine

    Molecular Formula

    C14H15N

    Molecular Weight

    197.28

    Catalogue Number

    AR-D02256

    Parent Drug

    DOPA

    CAS Number

    103-49-1
    2-chloro-1-(3,4-dihydroxyphenyl)ethanone

    Synonym

    2-chloro-1-(3,4-dihydroxyphenyl)ethanone

    Molecular Formula

    C8H7ClO3

    Molecular Weight

    186.59

    Catalogue Number

    AR-D02255

    Parent Drug

    DOPA

    CAS Number

    99-40-1
    5,6,11,12-tetrahydro-5,11-epiminodibenzo[a,e][8]annulene-2,3,8,9-tetraol

    Synonym

    5,6,11,12-tetrahydro-5,11-epiminodibenzo[a,e][8]annulene-2,3,8,9-tetraol

    Molecular Formula

    C16H15NO4

    Molecular Weight

    285.30

    Catalogue Number

    AR-D02254

    Parent Drug

    DOPA
    (E)-1,2-dimethoxy-3-(2-nitrovinyl)benzene

    Synonym

    (E)-1,2-dimethoxy-3-(2-nitrovinyl)benzene

    Molecular Formula

    C10H11NO4

    Molecular Weight

    209.20

    Catalogue Number

    AR-D02253

    Parent Drug

    DOPA

    CAS Number

    37630-20-9
    (E)-2-methoxy-4-(2-nitrovinyl)phenol

    Synonym

    (E)-2-methoxy-4-(2-nitrovinyl)phenol

    Molecular Formula

    C9H9NO4

    Molecular Weight

    195.17

    Catalogue Number

    AR-D02252

    Parent Drug

    DOPA

    CAS Number

    22568-51-0
    1,2-dimethoxy-4-(2-nitrovinyl)benzene

    Synonym

    1,2-dimethoxy-4-(2-nitrovinyl)benzene

    Molecular Formula

    C10H11NO4

    Molecular Weight

    209.20

    Catalogue Number

    AR-D02251

    Parent Drug

    DOPA

    CAS Number

    4230-93-7
    (E)-4-(2-nitrovinyl)benzene-1,2-diol

    Synonym

    (E)-4-(2-nitrovinyl)benzene-1,2-diol

    Molecular Formula

    C8H7NO4

    Molecular Weight

    181.15

    Catalogue Number

    AR-D02250

    Parent Drug

    DOPA

    CAS Number

    108074-44-8
    2-methoxy-5-(2-nitrovinyl)phenol

    Synonym

    2-methoxy-5-(2-nitrovinyl)phenol

    Molecular Formula

    C9H9NO4

    Molecular Weight

    195.17

    Catalogue Number

    AR-D02249

    Parent Drug

    DOPA

    CAS Number

    39816-35-8
    (S)-3-(3-acetyl-4-hydroxyphenyl)-2-aminopropanoic acid hydrochloride

    Synonym

    4-(2-aminoethyl)cyclohexa-3,5-diene-1,2-dione

    Molecular Formula

    C8H9NO2

    Molecular Weight

    151.17

    Catalogue Number

    AR-D02248

    Parent Drug

    DOPA

    CAS Number

    50673-96-6
    2-(3,4-dihydroxyphenyl)-2-hydroxyacetaldehyde

    Synonym

    (S)-3-(3-acetyl-4-hydroxyphenyl)-2-aminopropanoic acid hydrochloride

    Molecular Formula

    C11H13NO4. HCl

    Molecular Weight

    223.23 36.46

    Catalogue Number

    AR-D02247

    Parent Drug

    DOPA

    CAS Number

    32404-28-7
    (2R,3S)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Synonym

    (2R,3S)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Molecular Formula

    C9H11NO5

    Molecular Weight

    213.19

    Catalogue Number

    AR-D02246

    Parent Drug

    DOPA
    Racemic Carbidopa-13C-d3

    Synonym

    3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid-13CD3

    Molecular Formula

    13C C9H11D3N2O4

    Molecular Weight

    230.24

    Catalogue Number

    AR-C01378

    Parent Drug

    DOPA

    CAS Number

    302-53-4 (non-labelled)
    (2S,3R)-2-(((benzyloxy)carbonyl)amino)-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoic acid

    Synonym

    (2S,3R)-2-(((benzyloxy)carbonyl)amino)-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoic acid

    Molecular Formula

    C31H29NO7

    Molecular Weight

    527.57

    Catalogue Number

    AR-D02244

    Parent Drug

    DOPA

    CAS Number

    55382-14-4
    (2R,3R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Synonym

    (2R,3R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Molecular Formula

    C9H11NO5

    Molecular Weight

    213.19

    Catalogue Number

    AR-D02243

    Parent Drug

    DOPA

    CAS Number

    51829-98-2
    3-(3,4-dihydroxyphenyl)-2-methylpropanoic acid

    Synonym

    3-(3,4-dihydroxyphenyl)-2-methylpropanoic acid

    Molecular Formula

    C10H12O4

    Molecular Weight

    196.20

    Catalogue Number

    AR-C01377

    Parent Drug

    DOPA

    CAS Number

    53832-94-3
    Droxidopa-13C6

    Molecular Formula

    13C6 C3H11NO5

    Molecular Weight

    219.12

    Catalogue Number

    AR-D02241

    Parent Drug

    DOPA
    L-threo-Droxidopa-13C2-15N

    Molecular Formula

    13C2 C7H11 15NO5

    Molecular Weight

    216.17

    Catalogue Number

    AR-D02240

    Parent Drug

    DOPA

    CAS Number

    1276295-04-5
    Droxidopa

    Synonym

    (2S,3R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid

    Molecular Formula

    C9H11NO5

    Molecular Weight

    213.19

    Catalogue Number

    AR-D02239

    Parent Drug

    DOPA

    CAS Number

    23651-95-8
    6-Hydroxy L-DOPA (Levadopa Related Compound A)

    Synonym

    (S)-2-amino-3-(2,4,5-trihydroxyphenyl)propanoic acid

    Molecular Formula

    C9H11NO5

    Molecular Weight

    213.19

    Catalogue Number

    AR-D02238

    Parent Drug

    DOPA

    CAS Number

    27244-64-0
    Methyldopa EP Impurity C

    Synonym

    (S)-2-amino-3-(3,4-dimethoxyphenyl)-2-methylpropanoic acid

    Molecular Formula

    C12H17NO4

    Molecular Weight

    239.27

    Catalogue Number

    AR-D02237

    Parent Drug

    DOPA

    CAS Number

    39948-18-0
    2-(3,4-dihydroxyphenyl)acetaldehyde

    Synonym

    2-(3,4-dihydroxyphenyl)acetaldehyde

    Molecular Formula

    C8H8O3

    Molecular Weight

    152.15

    Catalogue Number

    AR-D02236

    Parent Drug

    DOPA

    CAS Number

    5707-55-1
    5,6-dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one

    Synonym

    2-(3,4-dihydroxyphenyl)-2-hydroxyacetaldehyde

    Molecular Formula

    C8H8O4

    Molecular Weight

    168.15

    Catalogue Number

    AR-D02235

    Parent Drug

    DOPA

    CAS Number

    13023-73-9
    rac-Carbidopa Impurity H

    Synonym

    2-hydrazinyl-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic acid

    Molecular Formula

    C11H16N2O4

    Molecular Weight

    240.26

    Catalogue Number

    AR-C01376

    Parent Drug

    DOPA
    Carbidopa Ethyl Ester HCl

    Synonym

    ethyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate hydrochloride

    Molecular Formula

    C12H18N2O4. HCl

    Molecular Weight

    254.29 36.46

    Catalogue Number

    AR-C01375

    Parent Drug

    DOPA

    CAS Number

    96115-88-7
    Carbidopa Methyl Ester

    Synonym

    methyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate

    Molecular Formula

    C11H16N2O4

    Molecular Weight

    240.26

    Catalogue Number

    AR-C01374

    Parent Drug

    DOPA

    CAS Number

    91431-01-5
    5,6-dihydroxy-1H-indole-2-carboxylic acid

    Synonym

    5,6-dihydroxy-1H-indole-2-carboxylic acid

    Molecular Formula

    C9H7NO4

    Molecular Weight

    193.16

    Catalogue Number

    AR-D02231

    Parent Drug

    DOPA

    CAS Number

    4790-08-3
    Carbidopa EP Impurity B

    Synonym

    (S)-methyl 2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

    Molecular Formula

    C11H15NO4

    Molecular Weight

    225.24

    Catalogue Number

    AR-C01373

    Parent Drug

    DOPA

    CAS Number

    18181-08-3
    Carbidopa EP Impurity C

    Synonym

    (S)-2-hydrazinyl-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic acid

    Molecular Formula

    C11H16N2O4

    Molecular Weight

    240.26

    Catalogue Number

    AR-C01372

    Parent Drug

    DOPA
    Carbidopa EP Impurity H

    Synonym

    (S)-2-hydrazinyl-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic acid

    Molecular Formula

    C11H16N2O4

    Molecular Weight

    240.26

    Catalogue Number

    AR-C01370

    Parent Drug

    DOPA
    Carbidopa EP Impurity F

    Synonym

    (S)-ethyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate

    Molecular Formula

    C12H18N2O4

    Molecular Weight

    254.29

    Catalogue Number

    AR-C01369

    Parent Drug

    DOPA

    CAS Number

    1458640-32-8
    Carbidopa EP Impurity E

    Synonym

    (S)-methyl 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoate

    Molecular Formula

    C11H16N2O4

    Molecular Weight

    240.26

    Catalogue Number

    AR-C01368

    Parent Drug

    DOPA

    CAS Number

    52514-63-3
    (S)-methyl 2-(2-cyclohexylidenehydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

    Synonym

    (S)-methyl 2-(2-cyclohexylidenehydrazinyl)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate

    Molecular Formula

    C17H24N2O4

    Molecular Weight

    320.39

    Catalogue Number

    AR-C01367

    Parent Drug

    DOPA

    CAS Number

    934371-48-9
    DL-Methyldopa-d3

    Molecular Formula

    C10H10D3NO4

    Molecular Weight

    214.24

    Catalogue Number

    AR-D02223

    Parent Drug

    DOPA

    CAS Number

    55-40-3 (non-labelled)
    Methyldopa EP Impurity B HCl

    Synonym

    (S)-2-amino-3-(4-methoxyphenyl)-2-methylpropanoic acid hydrochloride

    Molecular Formula

    C11H15NO3. HCl

    Molecular Weight

    209.25 36.46

    Catalogue Number

    AR-D02222

    Parent Drug

    DOPA

    CAS Number

    35026-10-9
    Dopamine Impurity C (3,4-Dimethoxyphenethylamine)

    Synonym

    2-(3,4-dimethoxyphenyl)ethanamine

    Molecular Formula

    C10H15NO2

    Molecular Weight

    181.24

    Catalogue Number

    AR-D02221

    Parent Drug

    DOPA

    CAS Number

    120-20-7
    rac-Carbidopa EP Impurity I (3-Bromo Carbidopa)

    Synonym

    3-(3-bromo-4,5-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid

    Molecular Formula

    C10H13BrN2O4

    Molecular Weight

    305.13

    Catalogue Number

    AR-C01366

    Parent Drug

    DOPA

    CAS Number

    1246819-09-9